Question: Who works for the accused Mariposa Folk Festival 1974?
Paraphrase: The accused Mariposa Folk Festival in 1974 employed whom?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q54554872 wdt:P710 ?X . ?X wdt:P108 ?answer}
Answer: National Film Board of Canada, Canadian Museum of History, OCAD University